CN203540562U - Impregnating device - Google Patents
Impregnating device Download PDFInfo
- Publication number
- CN203540562U CN203540562U CN201320679941.3U CN201320679941U CN203540562U CN 203540562 U CN203540562 U CN 203540562U CN 201320679941 U CN201320679941 U CN 201320679941U CN 203540562 U CN203540562 U CN 203540562U
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- CN
- China
- Prior art keywords
- catalyst
- immersion system
- conveying equipment
- dipping
- catalyst carrier
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003054 catalyst Substances 0.000 claims abstract description 97
- 238000005470 impregnation Methods 0.000 claims abstract description 29
- 239000002245 particle Substances 0.000 claims abstract description 21
- 238000007598 dipping method Methods 0.000 claims description 60
- 238000007654 immersion Methods 0.000 claims description 34
- 238000002803 maceration Methods 0.000 claims description 24
- 238000000926 separation method Methods 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 12
- 239000007788 liquid Substances 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 239000007921 spray Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 238000001802 infusion Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000035508 accumulation Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002365 multiple layer Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Images
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- Catalysts (AREA)
Abstract
The utility model discloses an impregnating device which comprises an impregnating chamber, catalyst carrier feeding equipment, impregnation liquid conveying equipment, impregnated catalyst conveying equipment and impregnation liquid recovery equipment, wherein the catalyst carrier feeding equipment is arranged at the top of the impregnating chamber and is provided with a plurality of feed inlets, so that the catalyst carrier particles are dispersed and fall through the feed inlets; the impregnation liquid conveying equipment is arranged on one side of the catalyst carrier feeding equipment and is provided with a horizontal screen generator; the impregnated catalyst conveying equipment and the impregnation liquid recovery equipment are located at the lower part of the impregnating chamber; the impregnated catalyst conveying equipment conveys the impregnation fluid by a conveyor belt in which holes are formed, so that the impregnation fluid flows into the impregnation liquid recovery equipment. The device is suitable for impregnating spherical catalysts, can be continuously operated and can immediately take away impregnated adsorption heat, so that the percentage of damage of the catalyst is reduced, and the influence on the wear resistance of the catalyst is alleviated.
Description
Technical field
The utility model relates to a kind of immersion system, is applicable to the immersion system of spheric catalyst, is particularly applicable to the immersion system of 0.2 ~ 1.0mm spheric catalyst.
Background technology
Infusion process is to produce the method that hydrogenation catalyst is commonly used the most.When the carrier with loose structure floods in the solution that contains a certain amount of active metal component, solution is under the effect of capillary force, by surface, be drawn in carrier pore, the active component of solute is to pore inwall diffusion, and then adsorbed by the active site of carrier surface, or deposition, ion-exchange even react, active metal component is loaded in catalyst carrier.Infusion process treating capacity is large, efficiency is high, and the active component of load is in most cases distributed on carrier surface, and utilization rate is high, and consumption is few.
Infusion process mainly contains saturated dipping and supersaturation dipping, and wherein saturated dipping is to control the volume of dipping solution well according to carrier amount and water absorption rate, under certain liquid-solid ratio, make the complete impregnated solution-wet of carrier guarantee catalyst again in the content of active component.And carrier rotate container in seethe, can make dipping solution be sprayed at equably on carrier granular, a part of heat of adsorption that simultaneously sheds, but violent seething cause catalyst wearing and tearing increase, pulverization rate is large.Catalyst, in saturated dipping process, easily makes active metal component at catalyst outer surface skewness, causes the color of catalyst outward appearance variant.The method of industrial saturated dipping is all intermittent operation.Supersaturation dipping is exactly the water absorption rate that the amount of dipping solution is greater than carrier, and catalyst carrier is soaked certain hour in excessive solution, guarantees the load capacity of metal, then enter dry, roasting system dry, activation.Supersaturation dipping can guarantee that active metal component is dispersed in catalyst carrier.Supersaturation is impregnated with step, also has continous way, and wherein continous way has hanging basket dipping, guipure dipping and a cylinder impregnating.Industrial supersaturation impregnation process be the catalyst compared with coarsegrain, and in charge equipment, the bed of material is all thicker, the heat of adsorption producing during dipping can not be taken out of in time, causes the decline of catalyst abrasion intensity.
For pellet shapes boiling-bed catalyst, because the particle diameter of catalyst is very little, the specific area of catalyst carrier is larger simultaneously, in dipping process, will produce very large heat of adsorption like this, a large amount of heats of adsorption suddenly discharge from spherical carrier of catalyst, can make the mechanical strength of catalyst greatly reduce, especially the wear resistance of catalyst be had a great impact.In addition, when treating capacity is very large, the pellet shapes particle porosity of accumulation is very low, and the heat of adsorption producing during dipping can not be taken out of in time, and a large amount of heat accumulations also can reduce the wear resistance of catalyst.Fluid bed dipping is in fluidized bed plant, to pack a certain amount of catalyst carrier into, from bottom of device, passing into gas makes catalyst carrier always in fluidized state, and dipping solution from nozzle downwards or be tangentially directly sprayed onto the catalyst carrier in fluidized state, complete the dipping of catalyst.The heat of adsorption producing in fluid bed dipping method can be taken away by gas, reduces the impact of heat of adsorption on catalyst mechanical performance, but because device inner catalyst is always in fluid boiling state, the wearing and tearing of catalyst are larger; In addition, fluidisation when dipping be step and treating capacity also less.
CN202343206U discloses a kind of rotary catalyst soakage machine.This impregnator comprises the cylinder that a level is installed, cylinder two ends are tapered, the top of the taper of one end arranges charging aperture, the conical top of the other end arranges discharging opening, a shower is set in impregnator cylinder, on shower, be provided with multiple spray heads or mouth, can make spray liquid be sprayed onto equably in the impregnated catalyst carrier in cylinder, shower is connected with hydraulic pump, adopt the maceration extract total amount of flow controller control spray, in cylinder, be provided with the baffle plate of 2-6 piece fin shape, when rotary drum, impregnated carrier in cylinder is by ceaselessly, stir equably, cylinder is furnished with gear outward, impregnator cylinder connects numerical control motor speed, it is normal spray dipping that cylindrical shell turns clockwise, cylindrical shell is rotated counterclockwise and utilizes mechanical force, the turn left high low head of the baffle plate of using fin shape of cylinder is pushed the abundant carrier of dipping to outlet and is fallen into outlet four-bladed vane, by four-bladed vane, impregnated carrier is sent outside cylinder.But because device inner catalyst is always in rolling state, the wearing and tearing of catalyst are larger; In addition, the disposable whole sprays of solution are complete, and the heat of adsorption producing during dipping can not be pulled away in time, affects catalyst mechanical performance.
Utility model content
For the deficiencies in the prior art, the utility model provides a kind of immersion system.This device is applicable to the dipping of spheric catalyst, can continued operation, and can in time the heat of adsorption of dipping be taken away, thereby reduce the percentage of damage of catalyst, reduce the impact of the wear resistance on catalyst.The method can improve ebullated bed catalyst prod quality, also can meet large-scale industrial production needs.
Immersion system of the present utility model, comprise: impregnation chamber, catalyst carrier apparatus for feeding, maceration extract conveying equipment, dipping rear catalyst conveying equipment and maceration extract reclaimer, wherein, catalyst carrier apparatus for feeding is located at the top of impregnation chamber, be provided with multiple charging apertures, make catalyst carrier particle disperse to fall into, maceration extract conveying equipment is arranged on a side of impregnation chamber, level curtain screen generator is housed, dipping rear catalyst conveying equipment and maceration extract reclaimer are positioned at the bottom of impregnation chamber, dipping rear catalyst conveying equipment adopts conveyer belt to carry, conveyer belt is provided with hole, maceration extract is flow in maceration extract reclaimer.
In immersion system of the present utility model, in impregnation chamber inside, a side relative with maceration extract conveying equipment is longitudinally provided with baffle plate or backstop, its objective is catalyst carrier particle is avoided and the strong collision of flooding locular wall.Certain distance can be left from baffle plate or backstop in the position of charging aperture, to alleviate collision.
In immersion system of the present utility model, catalyst carrier particle is spherical, and diameter is generally 0.2 ~ 1.0mm.Intake port is 3 ~ 8 times of catalyst carrier particle diameter, is preferably 3 ~ 6 times.
In immersion system of the present utility model, the charging aperture of catalyst carrier apparatus for feeding is arranged on feedboard, is preferably evenly arranged on feedboard, and charging aperture preferably adopts taper circular hole.Taper circular hole top axis of great circle and bottom axis of small circle ratio are 1.2 ~ 3.0, preferably 1.5 ~ 2.5.Charging aperture bottom axis of small circle is 3 ~ 8 times of catalyst carrier particle diameter, is preferably 3 ~ 6 times.Feedboard can shake, and promotes that catalyst carrier particle enters immersion system by charging aperture.The vibration frequency of feedboard is 5 ~ 20Hz, preferably 5 ~ 10Hz.Catalyst carrier inlet amount is determined according to the production scale design of catalyst.
In immersion system of the present utility model, level curtain screen is preferably in below 30 ° with the angle that horizontal plane forms.
In immersion system of the present utility model, dipping solution level curtain screen generator is arranged on immersion system one side, and multiple-layer horizontal curtain screen can be set, and is preferably 3 ~ 5 layers, every layer the number of nozzle can be installed as required, and the atomizing angle of nozzle is between 60 ° ~ 150 °.Perpendicular separation distance between level curtain screen is 100 ~ 500mm, preferably 200 ~ 400mm.Dipping solution level curtain screen will leave certain distance with charging aperture, so that catalyst carrier particle falls into level curtain screen above reposefully, guarantees that carrier fully contacts with curtain screen, the impact of minimizing maceration extract on charging.
In immersion system of the present utility model, dipping rear catalyst conveying equipment adopts transport tape to carry, the size that hole is set on transport tape is less than catalyst granules, preferably adopts order number to be greater than 140 object stainless steel mesh, and dipping solution can enter dipping solution reclaimer by screen cloth.The width of transport tape is slightly larger than the width of impregnation chamber.Transport tape one end is connected with drying equipment, and the catalyst after dipping is directly dried and roasting.
In the utility model immersion system, dipping solution reclaimer is positioned at below dipping rear catalyst induction system, can adopt grooved solution recovery pond, and dipping solution after filtration, recycle after supplementing active component.
Compared with prior art, the utility model immersion system has the following advantages:
(1) because catalyst carrier disperses to shield by dipping solution curtain, dipping solution can be taken away dipping heat of adsorption in time, reduces the catalyst breakage that heat of adsorption causes, and improves catalyst wear resistance.
(2), because dipping process catalyst is without tumbling motion, reduced fricative dust between catalyst granules.
(3) this impregnation technology has good continuity, has improved production efficiency.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model immersion system.
Fig. 2 is the top view of the utility model immersion system.
Fig. 3 is the A cutaway view of the utility model immersion system.
Wherein: 1 feedboard, 2 charging apertures, 3 impregnation chamber, 4 dipping solution level curtain screen generators, 5 dipping rear catalyst conveying equipments, 6 dipping solution reclaimers, 7 backstops.
The specific embodiment
Immersion system described in the utility model is box immersion system, comprise impregnation chamber 3, catalyst carrier apparatus for feeding, maceration extract conveying equipment, dipping rear catalyst conveying equipment 5 and maceration extract reclaimer 6, wherein, catalyst carrier apparatus for feeding is located at the top of impregnation chamber 3, be provided with multiple charging apertures 2, make catalyst carrier particle disperse to fall into, maceration extract conveying equipment is arranged on a side of impregnation chamber 3, level curtain screen generator 4 is housed, make maceration extract be the form charging of level curtain screen, contact with disperseing the catalyst carrier particle falling into, dipping rear catalyst conveying equipment 5 and maceration extract reclaimer 6 are positioned at the bottom of impregnation chamber 3, dipping rear catalyst conveying equipment 5 adopts conveyer belt to carry, conveyer belt is provided with hole, maceration extract is flow in maceration extract reclaimer 6.
In immersion system of the present utility model, a side is provided with maceration extract conveying equipment, and opposite side is longitudinally provided with plate washer or shelves net 7 in impregnation chamber 3 inside, its objective is and avoids catalyst carrier particle and the strong collision of flooding locular wall.
When immersion system of the present utility model is used, catalyst carrier particle is scattered and is entered impregnation chamber 3 by the charging aperture 2 on feedboard 1, dipping solution sprays into impregnation chamber by dipping solution level curtain screen generator 4, make catalyst carrier particle contact and flood with dipping solution level curtain screen, by backstop 7, catalyst carrier particle is avoided and the strong collision of impregnation chamber 3, dipping solution and catalyst carrier particle enter dipping rear catalyst conveying equipment 5, dipping solution enters dipping solution reclaimer 6 by the hole on conveyer belt, and after filtration etc. processing can be recycled.Catalyst through catalyst transport equipment deliver to drying device be dried and roasting activate.
Claims (11)
1. an immersion system, comprise: impregnation chamber, catalyst carrier apparatus for feeding, maceration extract conveying equipment, dipping rear catalyst conveying equipment and maceration extract reclaimer, wherein, catalyst carrier apparatus for feeding is located at the top of impregnation chamber, be provided with multiple charging apertures, make catalyst carrier particle disperse to fall into impregnation chamber, maceration extract conveying equipment is arranged on a side of impregnation chamber, level curtain screen generator is housed, dipping rear catalyst conveying equipment and maceration extract reclaimer are positioned at the bottom of impregnation chamber, dipping rear catalyst conveying equipment adopts conveyer belt to carry, conveyer belt is provided with hole, maceration extract is flow in maceration extract reclaimer.
2. according to immersion system claimed in claim 1, it is characterized in that: in dipping dress chamber interior, a side relative with maceration extract conveying equipment is longitudinally provided with baffle plate or backstop.
3. according to immersion system claimed in claim 1, it is characterized in that: the angle that level curtain screen and horizontal plane form is below 30 °.
4. according to immersion system claimed in claim 1, it is characterized in that: catalyst carrier particle is spherical, diameter is 0.2 ~ 1.0mm.
5. according to the immersion system described in claim 1 or 4, it is characterized in that: intake port is 3 ~ 8 times of catalyst carrier particle diameter.
6. according to immersion system claimed in claim 1, it is characterized in that: the charging aperture of catalyst carrier apparatus for feeding is arranged on feedboard.
7. according to immersion system claimed in claim 6, it is characterized in that: the charging aperture on feedboard adopts taper circular hole, and taper circular hole top axis of great circle and bottom axis of small circle ratio are 1.2 ~ 3.0.
8. according to immersion system claimed in claim 7, it is characterized in that: charging aperture bottom axis of small circle is 3 ~ 8 times of catalyst carrier particle diameter.
9. according to immersion system claimed in claim 6, it is characterized in that: feedboard can shake, vibration frequency is 5 ~ 20Hz.
10. according to immersion system claimed in claim 1, it is characterized in that: dipping solution level curtain screen generator arranges 3 ~ 5 layers, the perpendicular separation distance between level curtain screen is 100 ~ 500mm.
11. according to immersion system claimed in claim 1, it is characterized in that: dipping rear catalyst conveying equipment adopts transport tape to carry, and transport tape adopts order number to be greater than 140 object stainless steel mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320679941.3U CN203540562U (en) | 2013-10-31 | 2013-10-31 | Impregnating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320679941.3U CN203540562U (en) | 2013-10-31 | 2013-10-31 | Impregnating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203540562U true CN203540562U (en) | 2014-04-16 |
Family
ID=50458732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320679941.3U Expired - Lifetime CN203540562U (en) | 2013-10-31 | 2013-10-31 | Impregnating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203540562U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498856A (en) * | 2014-10-10 | 2016-04-20 | 中国石油化工股份有限公司 | Catalyst continuous impregnating device |
| CN110961164A (en) * | 2018-09-29 | 2020-04-07 | 中国石油化工股份有限公司 | Catalyst continuous impregnation equipment and method and application thereof |
-
2013
- 2013-10-31 CN CN201320679941.3U patent/CN203540562U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498856A (en) * | 2014-10-10 | 2016-04-20 | 中国石油化工股份有限公司 | Catalyst continuous impregnating device |
| CN105498856B (en) * | 2014-10-10 | 2018-05-18 | 中国石油化工股份有限公司 | A kind of catalyst successive impregnation device |
| CN110961164A (en) * | 2018-09-29 | 2020-04-07 | 中国石油化工股份有限公司 | Catalyst continuous impregnation equipment and method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |